Help editing doom imp ball

I want to edit the decorate to change the offset of where the doom imp ball comes from. Can someone help me with a decorate?
This is what i have so far:
any help would be greatly appreciated!

Missile:
TRO2 EF 6 A_FaceTarget
TRO2 G 4 A_CustomMissile ("Impshot", 0, 20, 0 )
TRO2 B 2
TRO2 VW 6 A_FaceTarget
TRO2 G 4 A_CustomMissile ("Impshot")
TRO2 E 0 A_Jump(200,9)
TRO2 D 2
TRO2 EF 6 A_FaceTarget
TRO2 G 4 A_CustomMissile ("Impshot")
TRO2 B 2
TRO2 VW 6 A_FaceTarget
TRO2 G 4 A_CustomMissile ("Impshot")
TRO2 B 0
goto See

*edit i need it to come from the left side more, like 20 pixels in? thats a rough guess

haven't tested it out but that looks pretty correct to me, the first one, at least. if you need to adjust it even more, can't you just modify the third value in A_CustomMissile (which in the case of the first one is at 20)? remember that value can be positive or negative, depending on what you need.

I figured it out, thanks for the response